The 1972 Australian Manufacturers' Championship was a CAMS sanctioned national motor racing title for car manufacturers. It was contested over a five-round series.
| Round | Race title | Circuit | State | Date | Winning driver(s) | Winning car | Report |
| 1 | Chesterfield 250 | Adelaide International Raceway | South Australia | 27 August |  Colin Bond | Holden Torana LJ GTR XU1 | Report |
| 2 | Sandown 250 | Sandown Park | Victoria | 10 September | John Goss | Ford XY Falcon GTHO Phase III | Report |
| 3 | Hardie-Ferodo 500 | Mount Panorama | New South Wales | 1 October | Peter Brock | Holden Torana LJ GTR XU1 | Report |
| 4 | Phillip Island 500K | Phillip Island | Victoria | 21 October |  Allan Moffat | Ford XY Falcon GTHO Phase III | Report |
| 5 | Chesterfield 300 | Surfers Paradise | Queensland | 26 November | Allan Moffat | Ford XY Falcon GTHO Phase III [1] | Report |
All rounds were open only to Group E Series Production Touring Cars. Entries were divided into four classes, split via "CP Units", where the engine capacity of the vehicle (in litres) was multiplied by the retail price of the vehicle (in dollars) to give a CP (Capacity Price) Units value for each model.
- Class A : Up to 3,000 CP Units
- Class B : 3,001 to 9,000 CP Units
- Class C : 9,001 to 18,000 CP Units
- Class D: 18,001 CP Units and over
For each round other than Bathurst, championship points were awarded 9,8,7,6,5,4,3,2,1 in each class with bonus points awarded for outright placings on a 4,3,2,1 basis. For the Bathurst round, points were awarded 18,16,14,12,10,8,6,4,2 in each class with bonus points awarded for outright placings on a 4,3,2,1 basis.
Championship results were as follows.
| Position | Manufacturer | Class | Car | Rd1 | Rd2 | Rd3 | Rd4 | Rd5 | Points |
| 1 | Ford | D | Ford Falcon XY GTHO | 10 | 13 | 21 | 13 | 13 | 70 |
| 2 | Holden | C | Holden Torana LJ GTR XU-1 | 13 | 10 | 22 | 12 | 12 | 69 |
| 3 | Ford | B | Ford Escort Twin Cam & Ford Escort GT1600 | 9 | 9 | 18 | 9 | 9 | 54 |
| 4 | Mazda | A | Mazda 1300 | 9 | 9 | 16 | 9 | 9 | 52 |
| 5 | Chrysler | D | Chrysler Valiant Charger R/T E49 | 8 | - | 18 | 7 | 6 | 39 |
| Datsun | A | Datsun 1200 | 8 | 7 | 18 | ? | ? | 39 | |
| 7 | Mazda | B | Mazda Capella RE | - | ? | 16 | ? | ? | 29 |
| 8 | Alfa Romeo | C | Alfa Romeo 1750 GTV | 5 | ? | 10 | ? | ? | 18 |
| 9 | Chrysler | C | Chrysler Valiant Charger R/T E38 | - | - | 12 | - | - | 12 |
| 10 | Fiat | B | Fiat 124 Sport | - | - | 6 | - | - | 6 |
| 11 | Chrysler | A | Chrysler Valiant Galant | 5 | - | - | - | - | 5 |
| Morris | B | Morris Cooper S | - | ? | - | ? | ? | 5 | |
| 13 | Holden | B | Holden Torana LC GTR | - | - | 2 | - | - | 2 |